CN203607831U - Protection system applicable to electrical network integrated circuit - Google Patents
Protection system applicable to electrical network integrated circuit Download PDFInfo
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- CN203607831U CN203607831U CN201320725114.3U CN201320725114U CN203607831U CN 203607831 U CN203607831 U CN 203607831U CN 201320725114 U CN201320725114 U CN 201320725114U CN 203607831 U CN203607831 U CN 203607831U
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- main protection
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- circuit breaker
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Emergency Protection Circuit Devices (AREA)
Abstract
A protection system applicable to an electrical network integrated circuit comprises a breaker, a main protection apparatus with an overvoltage distant skip function and a fiber optic interface apparatus. The main protection apparatus comprises a first main protection apparatus and a second main protection apparatus. The first main protection apparatus and the second main protection apparatus respectively comprise a main protection unit and an overvoltage distant skip unit. The first main protection apparatus and the second main protection apparatus respectively employ two fiber channels to transmit communication signals. The first main protection apparatus and the second main protection apparatus are connected with the breaker. The first main protection apparatus and the second main protection apparatus are connected with the fiber optic interface device, so that the number of protective apparatuses is reduced, loops are simplified, and the length and the complexity of the cable are reduced. In addition, since the reduction of the protective apparatuses and the loops, the design, construction and debugging are convenient, and the workload of operation maintenance is reduced, and the cost is saved.
Description
Technical field
The utility model relates to technical field of power systems, particularly relates to a kind of protection system that is applicable to power grid integrated circuit.
Background technology
Power industry is important foundation industry and the public utilities that involve the interests of the state and the people, safe, the stable and sufficient supplies important leverage condition of national economy overall, concerted and sustainable development especially of electric power.
At present, the electric power system fiber optic protection based on communication interface is applied on 220KV, 500KV circuit all as main the means of relay protection.The configuration of 500KV route protection system convention is that every time line configuring two is overlapped main protection, the two auxiliary protection of cover and relevant communication interface transmitting devices.But the breaker protection in this scheme, auxiliary protection depend on the signal transmitting apparatus of transformer station both sides, every loop line line protection device is many, and loop complexity, takies fiber resource more.
Utility model content
Based on this, be necessary many for protective device, loop is complicated, take the more problem of fiber resource, and a kind of protection system that is applicable to power grid integrated circuit is provided.
A protection system that is applicable to power grid integrated circuit, comprises circuit breaker, also comprises:
Comprise overvoltage and far jump the main protection equipment of function, described main protection equipment comprises the first main protection equipment and the second main protection equipment, described the first main protection equipment and the second main protection equipment include main protection unit and unit is far jumped in overvoltage, the overvoltage of described the first main protection equipment is far jumped unit and is connected with described circuit breaker, the overvoltage of described the second main protection equipment is far jumped unit and is connected with described circuit breaker, and described the first main protection equipment and the second main protection equipment all adopt two-way optical-fibre channel to transmit signal of communication;
Fibre-optic interface device, the main protection unit of described the first main protection equipment and the second main protection equipment is far jumped unit with overvoltage and is connected with described fibre-optic interface device by described optical-fibre channel respectively.
Therein in an embodiment; described circuit breaker comprises middle circuit breaker and limit circuit breaker; the first main protection equipment is provided with the first main opening into unit; the second main protection equipment is provided with the second main opening into unit; the described first main opening into unit is connected with limit circuit breaker with described middle circuit breaker respectively, and the described second main opening into unit is connected with described middle circuit breaker and limit circuit breaker respectively.
Therein in an embodiment, described limit circuit breaker and middle circuit breaker are equipped with four jumper connection mouths far away, described the first main opening into unit and the second main opening includes two into unit and opens incoming interface, described the first main two of opening into unit open incoming interface respectively the far away jumper connection mouth corresponding with described limit circuit breaker and middle circuit breaker connect, the described second main two of opening into unit open incoming interface respectively the far away jumper connection mouth corresponding with described limit circuit breaker and middle circuit breaker connect.
In an embodiment, described optical-fibre channel is multiplexing 2M optical-fibre channel therein.
In an embodiment, described the first main protection equipment and the second main protection equipment include anti-false tripping unit therein, and described anti-false tripping unit is connected with described optical-fibre channel.
In an embodiment, also comprise the first DC power supply and the second DC power supply therein, described the first main protection equipment is connected with described the first DC power supply, and described the second main protection equipment is connected with the second DC power supply.
Therein in an embodiment; described the first main protection equipment and the second main protection equipment all offer optical interface; described fibre-optic interface device comprises optical interface, and the optical interface of described the first main protection equipment and the second main protection equipment is direct-connected by the optical fiber optical interface corresponding with described fibre-optic interface device.
In an embodiment, described optical fiber is monomode fiber therein.
In an embodiment, described fibre-optic interface device is photoelectric conversion device therein.
In an embodiment, also comprise communication synchronization digital hierarchy equipment therein, described fibre-optic interface device is connected with described communication synchronization digital hierarchy equipment by coaxial cable.
The above-mentioned protection system that is applicable to power grid integrated circuit; main protection equipment comprises the first main protection equipment and the second main protection equipment; described the first main protection equipment and the second main protection equipment include main protection unit and unit is far jumped in overvoltage; the overvoltage of the first main protection equipment and the second main protection equipment is far jumped unit and is connected with circuit breaker respectively, and the main protection unit of described fibre-optic interface device and the first main protection equipment and the second main protection equipment and overvoltage are far jumped unit and be connected.So, main protection equipment had not only comprised main protection function but also had overvoltage far jumps miscellaneous function, can realize main protection and auxiliary protection by main protection equipment, and protective device quantity reduces, and simplify in loop, and cable length and complexity lower.In addition,, due to the minimizing in protective device, loop, design, construction debugging conveniently, have reduced the workload of operation maintenance, provide cost savings.
Accompanying drawing explanation
Fig. 1 is the configuration schematic diagram that is applicable to the protection system of power grid integrated circuit;
Fig. 2 is the main protection equipment DC power supply connection diagram that is applicable to the protection system of power grid integrated circuit.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provide preferred embodiment of the present invention.But the present invention can realize in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to the understanding of disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is called as " being fixed on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in specification of the present invention herein, just in order to describe the object of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
As shown in Figure 1, a kind of protection system that is applicable to power grid integrated circuit, comprises circuit breaker 110, main protection equipment 120 and fibre-optic interface device 130.Main protection equipment 120 comprises the first main protection equipment 122 and the second main protection equipment 124; the first main protection equipment 122 comprises main protection unit 1222 and Overvoltage protecting unit 1224; the second main protection equipment 124 includes main protection unit 1242 and Overvoltage protecting unit 1244; the overvoltage of the first main protection equipment 122 is far jumped unit 1224 and is connected with circuit breaker 110, and the overvoltage of the second main protection equipment 124 is far jumped unit 1244 and is connected with circuit breaker 110.The main protection unit 1242 that unit 1224 and the second main protection equipment 124 are far jumped in the main protection unit 1222 of the first main protection equipment 122 and overvoltage is far jumped unit 1244 with overvoltage and is connected with fibre-optic interface device 130 by optical-fibre channel respectively.
Main protection equipment 120 comprises the first main protection equipment 122 and the second main protection equipment 124; the first main protection equipment 122 comprises that main protection unit 1222 and Overvoltage protecting unit 1224, the second main protection equipments 124 include main protection unit 1242 and Overvoltage protecting unit 1244.The overvoltage of the first main protection equipment 122 is far jumped unit 1224 and is connected with circuit breaker 110, and the overvoltage of the second main protection equipment 124 is far jumped unit 1244 and is connected with circuit breaker 110
According to " south net 500kV relaying protection configuration and type selecting engineering philosophy " regulation, 500kV route protection should at least install two covers complete, the independently digital protecting of quick-action completely, and independent group screen.In the present embodiment; main protection equipment 120 comprises that the first main protection equipment 122 and the second main protection equipment 124, the first main protection equipments 122 and the second main protection equipment 124 have all comprised main protection unit and overvoltage and far jumped functional unit and realized main protection function and assistant protection function.
Be understandable that; the main protection unit 1242 of the main protection unit 1222 of the first main protection equipment 122 and the second main protection equipment 124 can, with differential current protection as circuit quick-action completely main protection, be protected with quick distance protection, syllogic phase distance protection, syllogic ground distance protection, four-part form zero-sequence current protection in support.The quick main protection that can be also main body in order to vertical connection distance and zero-sequence direction component, the quick protection being formed by Power Frequency Variety Distance Element.Form a complete set of backup protection by syllogic is alternate with ground distance and two delay number zero sequence direction overcurrents, protection is provided with a point phase command, and the direction of pilot protection, by comparing, is furnished with automatic reclosing function.The overvoltage that unit 1224 and the second main protection equipment 124 are far jumped in the overvoltage of the first main protection equipment 122 is far jumped unit 1244 and be can be digital jumping far away and differentiate.
The first main protection equipment 122 and the second main protection equipment 124 all adopt two-way optical-fibre channel to transmit signal of communication.
Optical-fibre channel is based on a kind of means of communication as transmission medium with optical fiber.Fiber optic protection is to utilize optical-fibre channel to transmit the protective relaying device of transmission line two end signals; optical-fibre channel combines with relaying protection; have with respect to passages such as traditional cable, carrier wave, microwaves that (1) light frequency is high, bandwidth, the containing much information of transmission.(2) fiber transmission attenuation is little, and quality is high.(3) cable size is little, and quality is light, noiselessness, and antijamming capability is strong.
In the present embodiment; the first main protection equipment 122 and the second main protection equipment 124 can adopt two-way optical-fibre channel; transmission information amount is large; meet the requirement of relaying protection to passage; the information that protective device is sent arrives rear flank through channel transfer, and information and raw information that protective device is received are in full accord.And the interference performance of anti-external electromagnetic field is strong, also can play circuit lightning conducter.In addition, adopt two-way optical-fibre channel can increase the stability of relaying protection, prevent because a road optical-fibre channel breaks down and cannot realize defencive function.The reliability, accuracy and the stability that continue electric protection action are improved so, greatly.
Be understandable that, the first main protection equipment 122 and the second main protection equipment 124 can adopt multiplexing 2M optical-fibre channel, also can adopt other optical-fibre channels or special optic fibre passage.Multiplexing fiber-optic passage is compared special optic fibre passage, and intermediate link is more, and guard signal has reduced reliability through multiple conversions, but multiplexed signals does not take fiber number, does not rely on the straight-through optical cable at two stations, can multiple connection multichannel guard signal, and capacity is large, and integrated cost is low.
The light signal transmitting between main protection equipment 120 and fibre-optic interface device 130; and the speed of the light signal of the protective device transmission in fibre-optic interface device and other equipment and offside power station is 2048 ± 50ppm kb/s; adopt 2M optical-fibre channel; not only guarantee signal transmission bandwidth; meet guard signal between two websites mutual needs; and keep the low order transmission rate between equipment constant; expand to a certain extent the versatility of technology, reduced development difficulty and the development cost of optical interface between equipment.In the present embodiment, can adopt multiplexing 2M optical-fibre channel.
The main protection unit of the first main protection equipment 122 and the second main protection equipment 124 is far jumped unit with overvoltage and is connected with fibre-optic interface device 130 by optical-fibre channel respectively.
In the present embodiment, fibre-optic interface device 130 can be photoelectric conversion device, light signal is converted to the signal of telecommunication that is applicable to communication equipment, or converts the electrical signal to light signal.Fibre-optic interface device 130 can far be jumped unit by the main protection unit of optical fiber and the first main protection equipment 122 and the second main protection equipment 124 and overvoltage and is connected.
The above-mentioned protection system that is applicable to power grid integrated circuit, main protection equipment comprises the first main protection equipment 122 and the second main protection equipment 124, the first main protection equipment 122 comprises main protection unit 1222 and Overvoltage protecting unit 1224, the second main protection equipment 124 includes main protection unit 1242 and Overvoltage protecting unit 1244, the first main protection equipment 122 and the second main protection equipment 124 all adopt two-way optical-fibre channel, the overvoltage of the first main protection equipment 122 is far jumped unit 1224 and is connected with circuit breaker 110, the overvoltage of the second main protection equipment 124 is far jumped unit 1244 and is connected with circuit breaker 110.The main protection unit of the first main protection equipment 122 and the second main protection equipment 124 is far jumped unit with overvoltage and is connected with fibre-optic interface device 130 by optical-fibre channel respectively.In the time that breaker protection will join the circuit breaker of jumping circuit offside transformer station; first move in this side main protection equipment 120; the conversion of signal by main protection equipment 120 and fibre-optic interface device 130 is also sent to the main protection equipment of offside transformer station; then by the main protection equipment outlet tripping circuit breaker of offside transformer station, realize the protection of jumping far away.
Compared with prior art; original 500KV circuit needs 4 protective devices, 8 fibre-optic interface devices; the main protection unit 1222 of existing main protection equipment 120 and overvoltage far jump that main protection function has been realized in unit and miscellaneous function is far jumped in overvoltage; be reduced to 2 main protection equipments, and can complete main protection and auxiliary protection is far jumped in overvoltage.Reduce the quantity of fibre-optic interface device, and simplified secondary circuit, every loop line road reduces 1/3, has reduced the length of control cables, provides cost savings.Meanwhile, reduced taking of tunneling traffic resource, every time route protection reduces by 1/3 communication port.In addition, due to the minimizing of protective device, loop, communication port, reduced design, construction, debugging cost, reduced especially operation expense, saved construction investment and energy consumption.
Refer to Fig. 1; therein in an embodiment; circuit breaker 110 comprises middle circuit breaker 112 and limit circuit breaker 114; the first main protection equipment 122 is provided with the first main opening into unit 1226; the second main protection equipment 124 is provided with the second main opening into unit 1246; the first main opening into unit 1226 is connected with limit circuit breaker 114 with middle circuit breaker 112 respectively, and the second main opening into unit 1246 is connected with limit circuit breaker 114 with middle circuit breaker 112 respectively.
Circuit breaker 110 comprises middle circuit breaker 112 and limit circuit breaker 114, is configured by the reclosure time of middle circuit breaker 112 and limit circuit breaker 114.In the present embodiment, first, the rear combined floodgate of the reclosing of switch is by outside pressing plate control, and when normally operation, a switch press plate is first launched, and another exits, after the switch time delay certain hour that closes.So, increased the safety and stability of circuit breaker relaying protection.
First main open into unit 1226 and second main open into unit 1246 be for breaker failure far jump signal open into, by open into signal transfer to offside transformer station.When trip signal is sent in the relaying protection action of fault electric equipment; and when circuit breaker tripping; utilize the protection action message of faulty equipment and the current information of tripping circuit breaker to form the differentiation to breaker failure; within the shorter time limit, excise in same plant stand other about circuit breaker; make power failure range be limited in minimum; thereby guarantee the stable operation of electrical network, avoid causing the serious scaling loss of the fault element such as motor, transformer and the collapse of electrical network.
Refer to Fig. 1, therein in an embodiment, middle circuit breaker 112 and limit circuit breaker 114 are equipped with four jumper connection mouths far away, the first main opening into unit 1226 comprises that the first main opening into an interface 1225 and the first main opening into main the opening into unit 1246 of two interfaces 1227, the second comprises the second main opening into an interface 1245 and the second main opening into two interfaces 1247.Middle circuit breaker 112 and limit circuit breaker 114 include four jumper connection mouths far away; so; the first main opening into unit 1226 and the second main opening into unit 1246 connects and composes backup protection with middle circuit breaker 112 and limit circuit breaker 114 respectively, forms breaker fail protection, increased the stable and fail safe of electrical network.
Be understandable that, unit 1244 is far jumped in the overvoltage that unit 1224, the second main protection equipment 124 are far jumped in the overvoltage of the first main protection equipment 122, the first main opening into unit 1226 all can be connected with middle circuit breaker 112 and the corresponding interface of limit circuit breaker 114 by the first main opening into an interface 1225 and the first main opening into two interfaces 1227 with the second main opening into unit 1246.
Therein in an embodiment; the first main protection equipment 122 comprises anti-false tripping unit 1223; the second main protection equipment 124 comprises that the anti-false tripping unit 1223 of anti-false tripping unit 1243, the first main protection equipments 122 and the anti-false tripping unit 1243 of the second main protection equipment 124 are connected with optical-fibre channel.Under normal circumstances; two optical-fibre channels of the first main protection equipment 122 and the second main protection equipment 124 are normally moved; each passage all transmits the order of jumping far away to offside simultaneously; simultaneously; receive two far away jumpings and order, now, the anti-false tripping unit 1223 of the first main protection equipment 122 and the anti-false tripping unit 1243 of the second main protection equipment 124 judge according to the mode of " two get two "; only receive that two channel signals just export tripping operation, have anti-false tripping function.In the time that a certain passage breaks down, the anti-false tripping unit 1223 of the first main protection equipment 122 and the anti-false tripping unit 1243 of the second main protection equipment 124 automatically switch into " two get one " mode and judge, prevent disabler.So; the anti-false tripping unit 1223 of the first main protection equipment 122 and the anti-false tripping unit 1243 of the second main protection equipment 124 can judge and control the signal of optical-fibre channel, prevent false tripping, and in the time that a passage breaks down; guarantee realization of jumping function far away, increased the stability of electrical network.
Refer to Fig. 2; therein in an embodiment; be applicable to the protection system of power grid integrated circuit; also comprise the first DC power supply 140 and the second DC power supply 150; the first main protection equipment 122 is connected with the first DC power supply 140; the second main protection equipment 124 is connected with the second DC power supply 150, and the first main protection equipment 122 is connected with two groups of breaking coils respectively with the second main protection equipment 124.So, main protection equipment 120 is provided with two and overlaps independently DC power supply, has guaranteed the safety and stability of main protection equipment.
Therein in an embodiment; the first main protection equipment 122 and the second main protection equipment 124 all offer optical interface; fibre-optic interface device 130 comprises optical interface, and the optical interface of the first main protection equipment 122 and the second main protection equipment 124 is direct-connected by the optical fiber optical interface corresponding with fibre-optic interface device 130.The aspect of the interface between the first main protection equipment 122 and the second main protection equipment 124 and fibre-optic interface device 130 is non-framing; adopt non-framing mode interface; can guarantee the transparent transmission of signal of communication; make farthest compatible various protective device of optical interface, reduced development difficulty and the development cost of main protection equipment 120 with fibre-optic interface device 130 optical interfaces.Meanwhile, adopt non-framing mode interface, can use the full-time gap link of passage to carry out transfer of data, improve data transmission efficiency.
In an embodiment, between main protection equipment 120 and fibre-optic interface device 130, optical fiber is monomode fiber therein.The operating wavelength range of light signal is 1260nm to 1360nm.Standard single-mode fiber is in this operating wavelength range inner fiber dispersion minimum (1310nm is zero-dispersion wavelength), and loss is low, is conducive to the transmission of light signal.
Refer to Fig. 1; therein in an embodiment; be applicable to the protection system of power grid integrated circuit; also comprise communication synchronization digital hierarchy equipment (Synchronous Digital Hierarchy; SDH) 160, fibre-optic interface device 130 is connected with described communication synchronization digital hierarchy equipment 160 by coaxial cable.When signal is converted to the communication signal of telecommunication through fibre-optic interface device 130, be then sent to offside power station by communication synchronization digital hierarchy equipment 160.Communication synchronization digital hierarchy equipment 160 is compared with conventional art, and tool has the following advantages: the bit rate that (1) is unified.(2) stronger webmaster ability has stipulated abundant webmaster byte in communication synchronization digital hierarchy equipment 160 frame structures, and the ability that meets various requirement can be provided.(3) self-healed protection ring, also can form the looped network form with self-healed protection ability at communication synchronization digital hierarchy equipment 160, can effectively prevent that like this transmission medium is cut off, the situation that communication service all stops.So, communication synchronization digital hierarchy equipment 160 can guarantee efficient, stable offside power station that signal is transferred to, and has increased stability and the fail safe of protection system.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a protection system that is applicable to power grid integrated circuit, comprises circuit breaker, it is characterized in that, also comprises:
Comprise overvoltage and far jump the main protection equipment of function, described main protection equipment comprises the first main protection equipment and the second main protection equipment, described the first main protection equipment and the second main protection equipment include main protection unit and unit is far jumped in overvoltage, the overvoltage of described the first main protection equipment is far jumped unit and is connected with described circuit breaker, the overvoltage of described the second main protection equipment is far jumped unit and is connected with described circuit breaker, and described the first main protection equipment and the second main protection equipment all adopt two-way optical-fibre channel to transmit signal of communication;
Fibre-optic interface device, the main protection unit of described the first main protection equipment and the second main protection equipment is far jumped unit with overvoltage and is connected with described fibre-optic interface device by described optical-fibre channel respectively.
2. the protection system that is applicable to power grid integrated circuit according to claim 1; it is characterized in that; described circuit breaker comprises middle circuit breaker and limit circuit breaker; the first main protection equipment is provided with the first main opening into unit; the second main protection equipment is provided with the second main opening into unit; the described first main opening into unit is connected with limit circuit breaker with described middle circuit breaker respectively, and the described second main opening into unit is connected with described middle circuit breaker and limit circuit breaker respectively.
3. the protection system that is applicable to power grid integrated circuit according to claim 2; it is characterized in that; described limit circuit breaker and middle circuit breaker are equipped with four jumper connection mouths far away; described the first main opening into unit and the second main opening includes two into unit and opens incoming interface; described the first main two of opening into unit open incoming interface respectively the far away jumper connection mouth corresponding with described limit circuit breaker and middle circuit breaker connect, the described second main two of opening into unit open incoming interface respectively the far away jumper connection mouth corresponding with described limit circuit breaker and middle circuit breaker connect.
4. the protection system that is applicable to power grid integrated circuit according to claim 1, is characterized in that, described optical-fibre channel is multiplexing 2M optical-fibre channel.
5. the protection system that is applicable to power grid integrated circuit according to claim 1, is characterized in that, described the first main protection equipment and the second main protection equipment include anti-false tripping unit, and described anti-false tripping unit is connected with described optical-fibre channel.
6. the protection system that is applicable to power grid integrated circuit according to claim 1; it is characterized in that; also comprise the first DC power supply and the second DC power supply, described the first main protection equipment is connected with described the first DC power supply, and described the second main protection equipment is connected with the second DC power supply.
7. the protection system that is applicable to power grid integrated circuit according to claim 1; it is characterized in that; described the first main protection equipment and the second main protection equipment all offer optical interface; described fibre-optic interface device comprises optical interface, and the optical interface of described the first main protection equipment and the second main protection equipment is direct-connected by the optical fiber optical interface corresponding with described fibre-optic interface device.
8. the protection system that is applicable to power grid integrated circuit according to claim 7, is characterized in that, described optical fiber is monomode fiber.
9. the protection system that is applicable to power grid integrated circuit according to claim 1, is characterized in that, described fibre-optic interface device is photoelectric conversion device.
10. according to the protection system that is applicable to power grid integrated circuit described in claim 1～9 any one; it is characterized in that; also comprise communication synchronization digital hierarchy equipment, described fibre-optic interface device is connected with described communication synchronization digital hierarchy equipment by coaxial cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725114.3U CN203607831U (en) | 2013-11-15 | 2013-11-15 | Protection system applicable to electrical network integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725114.3U CN203607831U (en) | 2013-11-15 | 2013-11-15 | Protection system applicable to electrical network integrated circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203607831U true CN203607831U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725114.3U Withdrawn - After Issue CN203607831U (en) | 2013-11-15 | 2013-11-15 | Protection system applicable to electrical network integrated circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606908A (en) * | 2013-11-15 | 2014-02-26 | 中国能源建设集团广东省电力设计研究院 | A protection system applicable to an electrical network integrated circuit |
-
2013
- 2013-11-15 CN CN201320725114.3U patent/CN203607831U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606908A (en) * | 2013-11-15 | 2014-02-26 | 中国能源建设集团广东省电力设计研究院 | A protection system applicable to an electrical network integrated circuit |
| CN103606908B (en) * | 2013-11-15 | 2017-01-04 | 中国能源建设集团广东省电力设计研究院有限公司 | It is applicable to the protection system of power grid integrated circuit |
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